BIM workflow for Building ( eg Residential Buildings, Hospitals, Industrial shed Offices, etc )
BIM workflow goes like the lifecycle of building construction.
The life cycle of building
First, a building idea comes to the mind of the client, He explains that idea and requirement to Architect. The architect presents him with a different conceptual design based on client requirements. The client selects one or a couple of designs to start with and then finalizes a design. Once the design is accepted then a detailed plan with all specifications is prepared. The details are given to the structural engineer for designing structural elements. The structural engineer makes sure that he doesn’t change any architectural elements without the architect’s permission. Once the structural design is ready then same both architectural and structural design is forwarded to the service engineer, who installs and places necessary mechanical, electrical, and plumbing equipment in the building without changing the structural and architectural design, however, the design can be reviewed on request of Service Engineer. Once all details are finalized then a detailed cost of the building is worked out. Tenders are floated and contractors are invited to bid. A scheduled plan for construction of the building is prepared and execution is started. In the construction stage building goes into these phases Planning execution, tracking monitoring, and control. For all this, a project planner is required. Once the building is complete then after a few years regular maintenance of the building is done by a maintenance engineer. If all these people don’t communicate effectively then the project will be a failure. So, there was a need 1for a common platform where input will be given by all these stakeholders and a unified output is produced. So that no clashes happen at the site and the project is completed on time with preapproved cost and all scope of the project is met.
BIM Modelling
Previously there was a communication gap between Architects, Structures, services, Planning, and maintenance engineers and due to this, there were many clashes at the site. It leads to a waste of time and money and sometimes even the scope of work was also not achieved. If a project can’t be completed in a decided time, cost and scope then that project is said to be a failure. To solve this issue Building information modeling concept is developed. In this concept, there is a BIM modeler who takes input from the Architect, Structural engineer Planning maintenance, and MEP services engineer and makes a digital model of the building in software like Revit, and then all drawing is generated from a collaborative model which includes all details of all three disciplines.
·My preference for making a BIM model
1. Take input from the client
2. Create a conceptual model in Revit
3. Once the concept is accepted then make a detailed architectural model which includes structural elements
4. Collaborate in Revit structure environment and make a structural model
5. Export it to Etabs for structural design
6. From Etabs export to RCDC for Structural detailing
7. All details in the Revit structure model from RCDC detailing
8. Collaborate both architecture and structure model in Revit MEP environment
9. Make MEP model
10. Generate drawing
11. Generate a Detailed estimate
12. Generate all documents necessary for construction
13. Export and collaborate with Navisworks and primavera for scheduling, cost estimation, and project management
14. Track the project during construction with help of primavera
15. Control the project delays using primavera
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